Sequence of operation – Jade Range W7220 User Manual
Page 16
JADE
™
ECONOMIZER MODULE
62-0331—11
16
SEQUENCE OF OPERATION
Table 5. Dry Bulb Operation No DCV (CO2 sensor) - 1 Speed Fan.
a
With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2 –O after the delay if
the call for Y1-I and Y2-I have not been satisfied.
Table 6. Dry Bulb Operation With DCV (CO2 sensor) - 1 Speed Fan.
a
With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2 –O after the delay if
the call for Y1-I and Y2-I have not been satisfied.
DCV
OA Good to
economize?
Y1-I
Y2-I
FAN SPD
Y1-O
Y2-O
Occupied
Unoccupied
None
No
Off
Off
High
0-v/Off
0-v/Off
MIN POS
Closed
On
Off
High
24-v/On
0-v/Off
MIN POS
Closed
On
On
High
24-v/On
24-v/On
MIN POS
Closed
None
Yes
Off
Off
High
0-v/Off
0-v/Off
MIN POS
Closed
On
Off
High
0-v/Off
0-v/Off
MIN POS to Full-
Open
Closed to Full-Open
On
On
High
24-v/On
0-v/Off
a
MIN POS to Full-
Open
Closed to Full-Open
DCV
OA Good to
economize?
Y1-I
Y2-I
FAN SPD
Y1-O
Y2-O
Occupied
Unoccupied
Below CO2
set
No
Off
Off
High
0-v/Off
0-v/Off
VENTMIN
Closed
On
Off
High
24-v/On
0-v/Off
VENTMIN
Closed
On
On
High
24-v/On
24-v/On
VENTMIN
Closed
Yes
Off
Off
High
0-v/Off
0-v/Off
VENTMIN
Closed
On
Off
High
0-v/Off
0-v/Off
VENTMIN to Full-
Open
Closed to Full-Open
On
On
High
24-v/On
0-v/Off
a
VENTMIN to Full-
Open
Closed to Full-Open
Above CO2
set
No
Off
Off
High
0-v/Off
0-v/Off
VENTMIN to
VENTMAX
Closed
On
Off
High
24-v/On
0-v/Off
VENTMIN to
VENTMAX
Closed
On
On
High
24-v/On
24-v/On
VENTMIN to
VENTMAX
Closed
Yes
Off
Off
High
0-v/Off
0-v/Off
VENTMIN to
VENTMAX
Closed
On
Off
High
0-v/Off
0-v/Off
VENTMIN to Full-
Open
Closed to Full-Open
On
On
High
24-v/On
0-v/Off
a
VENTMIN to Full-
Open
Closed to Full-Open